Wexxar BEL 270 V.02 Installation and operating instructions

65-07-6 3/6/2007
OPERATION & SERVICE MANUAL 65-07-6
BEL 270 V.02
FULLY AUTOMATIC
HOT MELT GLUE CASE SEALER
Wexxar Packaging Inc.
Phone [phone] • Fax [phone]
E-mail: [email protected]

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 2
65-07-6 3/6/2007
SAFETY CAUTION!
Make sure the machine is disconnected from the air and power supplies before
undertaking any maintenance or service procedures.
Only one person at a time should adjust the machine.
Only qualified personnel must operate machine.
Be aware of the following machine characteristics:
- When the machine is connected to an air supply and first turned on, the Snap Folders will cycle once
and the compression press may cycle once. Be sure all personnel are clear of the machine when
starting.
- If the machine is running, activating the left hand limit switch at the infeed entrance will cause the
Snap Folders to cycle and the right hand limit switch at the entrance will cause the indexing stop
gate to operate.
- When the machine is running, activation of the limit switches mounted on the side belt conveyor
cover or the bottom roller conveyor at the center of the machine will cause hot glue to be dispensed
and can cause severe burns.
NEVER REACH INTO THE MACHINE WHILE IT IS RUNNING
For additional copies of this manual, parts, service or other information contact:
Phone [phone] • Fax [phone]
E-mail: [email protected]

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 3
65-07-6 3/6/2007
TABLE OF CONTENTS
INSTALLING THE BEL 270 ................................................................................................................ 4
Unpacking the Machine ..........................................................................................................................................................4
Leveling the Machine ..............................................................................................................................................................4
Power Connections ..................................................................................................................................................................4
Electrical Power ..................................................................................................................................................................4
Air Supply............................................................................................................................................................................4
Machine Adjustments..............................................................................................................................................................5
Adjusting for Box Width....................................................................................................................................................6
Adjusting for Box Height ...................................................................................................................................................6
Adjusting the Front Minor Flap Center Ski.....................................................................................................................7
Adjusting the Hot Melt Glue Unit .....................................................................................................................................7
Adjusting the Glue Pattern Control..................................................................................................................................7
OPERATING THE MACHINE ............................................................................................................ 9
Starting the Machine..........................................................................................................................................................9
Feeding Cases to the Machine .........................................................................................................................................10
Automatic Stop Gate........................................................................................................................................................10
SERVICE AND MAINTENANCE PROCEDURES ......................................................................... 11
Uni -Drive Side Belt Drive System ..................................................................................................................................11
Chain Drive Maintenance................................................................................................................................................11
Gear Reducer Maintenance.............................................................................................................................................12
Side Belt System ...............................................................................................................................................................13
Snap Folder Adjustment ..................................................................................................................................................14
TROUBLE SHOOTING GUIDE ........................................................................................................ 15
Section 1 - Corrugated Case Quality & Specifications .................................................................................................15
Section 2 - Case Drive Belt System .................................................................................................................................16
Section 3 - Top Flap Folding ...........................................................................................................................................18
Section 4 - Case Infeed and Indexing..............................................................................................................................20
TECHNICAL REFERENCE INFORMATION: PLEASE SEE PUBLICATION 66-07

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 4
65-07-6 3/6/2007
INSTALLING THE BEL 270
UNPACKING THE MACHINE
Remove the lag screws that secure each leg to the pallet base. Lift machine off the shipping pallet and move to
work location. (Always use wood dunnage blocks under the lower frame when using a forklift to move the
machine from the shipping pallet or to re-position it on the floor.)
LEVELING THE MACHINE
The machine should be installed level to avoid frame stress and to ensure optimum performance. If the floor is
uneven, we recommend that the machine be equipped with an optional adjustable leg leveling kit. The machine
should be anchored to the floor with at least 1/2-inch Dia lag bolts or to adjoining equipment to prevent any
movement of the machine by reactive forces that may occur as sealed cases are being driven through the machine
outfeed.
POWER CONNECTIONS
ELECTRICAL POWER
The standard BEL 270 is equipped with a single-phase 220V AC power supply to NEMA 12 specifications. A
1/2 HP TEFC motor (drawing 8A) powers the drive system. Other voltages and three-phase power options
may be supplied by special order.
A dedicated electrical circuit is recommended for this machine. If any electrical connections are required to
install this machine, they MUST be handled by an electrician qualified in your area.
AIR SUPPLY
The BEL 270 requires a clean, dry air supply with a constant pressure of 80 P.S.I. The volume of air required
for the BEL 270 is 0.2 C.F./cycle at 80 P.S.I., (6 Bar). The incoming air supply line must be at least a ½” ID
to provide an adequate amount of air without pressure drops when the machine is cycling.
One of the most common causes of inconsistent machine performance is inadequate air supply; therefore, the
foregoing requirements must be carefully observed to assure satisfactory operation.
CAUTION - When the machine is connected to an air suppl
y
and first turned on, both the Snap Folders and compression
press will c
y
cle once. Be sure all personnel are clear of the
machine when starting.
!

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 5
65-07-6 3/6/2007
The BEL 270 is equipped with an electrical air supply and dump valve controlled by the on-off switch circuit.
Switching off the machine will exhaust compressed air in the machine circuit. It also has a combined filter /
regulator / lubricator (FRL), which should be checked daily to ensure that the lubricator reservoir is filled, air
pressure is regulated to the proper setting, and that any water is drained from the filter.
MACHINE ADJUSTMENTS
There are six basic adjustments for size changes (refer to figures 1 & 2 below):
1. Box width adjustment – use the side mounted hand crank to move both side belt conveyors and top flap
Snap Folders in and out to fit the width of the box. ( Refer to 1.4.1 )
2. Box height adjustment – use the top hand wheel to move the machine head assembly up and down for
proper operation of the Snap Folders and place the center ski is close to the top of the box. (Refer to
1.4.2)
3. Center ski adjustment – use the lock handle on top of the ski to adjust it toward or away from the
machine in-feed depending on the case flap length. ( Refer to 1.4.3 ).
4. “Folder” [Snap Folder] Dwell Timer Control [Controls Enclosure] – controls the Snap Folder on-
delay time. The folder needs to be actuated long enough to direct the major flaps past the top glue gun and
under the flap guides on either side of the compression press.
5. Glue pattern adjustments – the length and interval of the glue bead pattern can be adjusted by
repositioning the glue limit switches on the conveyor cover and adjusting the glue timers in the controls
enclosure. (Refer to 1.4.5 ).
6. Hot Melt Glue Unit – Refer to operating instructions included with the hot melt unit.
CAUTION: Shut off the machine before making adjustments.
!
Electric Air Supply/ Dump
Valve
Filter/Regulator
Lubricator

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 6
65-07-6 3/6/2007
ADJUSTING FOR BOX WIDTH
Place the box between the conveyor belts under the center ski with the minor flaps folded. Use the side
mounted hand crank to wind in the drive belts until they lightly contact the case sides. Remove the box
through the infeed and wind the belts in by a further one half turn of the hand crank. This adjustment also
automatically moves the Snap Folders in to the correct horizontal position for the box width.
ADJUSTING FOR BOX HEIGHT
Using the handwheel shown in the photo below, wind the center ski downwards until it is above the folded
minor flaps by 1/8”. The Snap Folders will now be positioned at the correct height for flap folding.
NOTE: Depending on case fill, weight and dimensions, it may be necessary to make minor
adjustments to the settings for the best performance.
Center Ski
Drive Belts
Snap Folders
Hand crank can be
mounted on either
right or left side
Hand Wheel – Turn Clockwise to Lower
Machine Head Assembly (Snap Folders, top
glue head and compression press) for a shorter
case,
Turn Counter-Clockwise to Raise Machine
Head Assembly for a taller case.
Height Adjustment Lock

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 7
65-07-6 3/6/2007
ADJUSTING THE FRONT MINOR FLAP CENTER SKI
As shown above, the center ski, which serves to fold down the front minor flap, is mounted on a slotted
bracket. The slotted bracket permits the ski to be adjusted forward or away from the machine in-feed. The
ski is preset at the factory in such a way that the machine can handle a variety of box sizes without frequent
re-adjustment.
The length of the box minor flap determines the adjustment, which usually is a function of box width. When
running boxes that are at or close to the machines minimum and maximum width limits, or boxes with
different flap lengths (i.e. flap cut boxes), it may be necessary to adjust the position of the ski to ensure the
control of the minor flaps.
For boxes that are close to the minimum width, the ski should be adjusted forward, toward the in-feed. This
will ensure the rear minor flap does not spring open before it reaches the ski.
For boxes that are close to the maximum width, the ski should be adjusted in the opposite direction so the ski
does not interfere with the rear minor flap as the Snap Folders fold it.
To run the broader spectrum of box widths that are closer to the machines average width capabilities, the ski
should be set at the midpoint on the mounting slots.
ADJUSTING THE HOT MELT GLUE UNIT
The standard BEL 270 is equipped with a Nordson 3400 hot melt unit. Customers may specify other units. For
detailed instructions, please refer to the operation instructions supplied by the unit manufacturer.
ADJUSTING THE GLUE PATTERN CONTROL
Glue pattern timer settings and limit switch positions are preset at the factory to known customer requirements. If
further adjustments are needed, the machine and glue timers are located in the control panel enclosure. Please
refer to the following diagram as a guide to adjustment.

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 8
65-07-6 3/6/2007

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 9
65-07-6 3/6/2007
OPERATING THE MACHINE
STARTING THE MACHINE
On the standard BEL 270 machine, the “Main Power” switch is on the Control Box. It must be turned “ON”
before any of the other controls will operate.
 Glue “On/Off” and press ram “Up/Down” controls are located on the side of the main controls enclosure
facing the rear or out-feed end of the machine. These switches illuminate when the machine power is on and
the function the switch controls is active or ‘on’ for automatic operation
 The “Start/Stop” switch control station is on the center of the arch for easy access from either side of the
machine.
To start the machine, press the green “Start” button on the switch control station. Use the red “Stop“ button to
stop the machine.
Use the lighted switches on the control enclosure to turn “On” or “Off” the glue application or to control the
compression press ram independently.
CAUTION - When the machine is connected to an air supply and first
turned on, both the Snap Folders and compression press will cycle
once. Be sure all personnel are clear of the machine when starting.
!
“START” “STOP” Supply Power
“ON” Indicator
Light
Glue -
“ON/OFF”
Compression Press
Ram
“UP / DOWN”
Override Switch
Main Power
“ON/OFF”

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 10
65-07-6 3/6/2007
FEEDING CASES TO THE MACHINE
A powered infeed conveyor belt is the preferred method of feeding cases into the BEL 270 although gravity or
manual feed may also be used. Note that cases must enter level with the BEL 270 conveyor and not be tipped
forward or backward or there will be problems with top flap folding and sealing. For powered infeed conveyors a
speed of 60 ft./min. or less is recommended.
NOTE: The in-feed conveyor speed MUST be less than the BEL 270 standard conveyor
speed of 85 ft./min. A recommended speed is 60 ft./min. or less.
AUTOMATIC STOP GATE
The BEL 270 is equipped with a timed automatic stop gate, which separates or indexes cases as they enter into the
machine. The standard indexing gate is mounted inside the machine frame and operates in a normally down or
open position so that the first case in a sequence moves directly into the machine. The logic can be changed so
that the gate is normally up or closed which aids in squaring the case, if necessary, before it enters the drive belts.
The timing of the gate is controlled by a timer in the main controls enclosure. Stop gate actuation is usually set to
be 3 to 5 sec. It must be set at least 0.5 sec. longer than the Snap Folder (return) dwell time.
An optional external indexing gate that mounts on the front of the machine frame can be used for longer cases that
will bridge the gap between in-feed and machine conveyors and which must be used in place of the standard
internal stop gate with the machine over-length case modification. The externally mounted indexing gate is also
wider giving it better ability to square cases that may be skewed before they enter the case sealer.
Automatic Stop Gate shown in
“UP or “CLOSED” position